Welcome to the Madbury, NH, Volunteer Fire Department.
Madbury is a rural town in Southeastern New Hampshire located between
Dover, Lee, Barrington, and Durham. The 30 volunteers of the
Madbury Fire Department and Madbury F.A.S.T. (First Aid Stabilization
Team) operate two engines, one tanker, two forestry units, and a
utility vehicle.

PROPER
ASH DISPOSAL:

For safety's sake: It is recomended to dispose of ash in a covered
steel can. For example, use a small galvenized garbage can.

Or, use two:
filling one and letting the other sit for a week
or so before spreading them in the yard.
We've seen glowing embers in the pail 3-4 days after going in the can.
This can should be stored outside and/or on a non-combustible surface.